/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 */
package org.codehaus.groovy.classgen.asm

class CovariantReturnBytecodeTest extends AbstractBytecodeTestCase {
    void testCovariance(){
        def code = compile (method:'super$3$attach', classNamePattern:'C', '''
            abstract class A {
                A attach(){return this}
            }
            class B extends A {
                @Override
                B attach(){return (B) super.attach()}
            }
            class C extends B {
                @Override
                C attach(){return (C) super.attach()}
            }
        ''')
        assert code.hasSequence([
            "INVOKESPECIAL B.attach ()LB;"
        ])
    }
}
